On the identity of Polyporus schulzeri Fr

The existing collection of Polyporus schulzeri Fr. (≡ P. irpex Schulzer) in the Natural History Museum at Vienna (W) agrees microscopically with Schulzer’s unpublished observations and is therefore considered to represent the type specimen. A comparison of this material with specimens of Piptoporus soloniensis (Dub. ex Fr.) Pilát showed that both fungi are identical in structure and represent, in fact, the same species. A detailed study of fresh material and a thorough revision of the genus Piptoporus is needed before it can be decided if a new genus should be described for this species. In Piptoporus the correct name is P. soloniensis with P. schulzeri as a synonym.